Auto Merge Oldest Pull Request #65
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| name: Auto Merge Oldest Pull Request | |
| on: | |
| schedule: | |
| - cron: "0 */4 * * *" | |
| workflow_dispatch: | |
| jobs: | |
| auto-merge: | |
| runs-on: ubuntu-latest | |
| permissions: | |
| pull-requests: write | |
| contents: write | |
| steps: | |
| - name: Checkout repository | |
| uses: actions/checkout@v5 | |
| - name: Get oldest open pull request | |
| id: get-oldest-pr | |
| run: | | |
| # Get the oldest open PR (regardless of mergeability) | |
| PR_NUMBER=$(gh pr list --author "is-devops-bot" --state open --json number,createdAt,mergeable --jq 'sort_by(.createdAt) | .[0] | .number') | |
| if [ -z "$PR_NUMBER" ]; then | |
| echo "No open PRs found. Workflow completed successfully." | |
| echo "pr_number=" >> $GITHUB_OUTPUT | |
| exit 0 | |
| fi | |
| echo "Oldest open PR is #$PR_NUMBER" | |
| echo "pr_number=$PR_NUMBER" >> $GITHUB_OUTPUT | |
| env: | |
| GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }} | |
| - name: Check if oldest PR is mergeable | |
| if: steps.get-oldest-pr.outputs.pr_number != '' | |
| id: check-mergeable | |
| run: | | |
| PR_NUMBER="${{ steps.get-oldest-pr.outputs.pr_number }}" | |
| echo "Checking mergeability of PR #$PR_NUMBER..." | |
| # Get current mergeability status | |
| MERGEABLE=$(gh pr view "$PR_NUMBER" --json mergeable --jq '.mergeable') | |
| echo "PR #$PR_NUMBER mergeable status: $MERGEABLE" | |
| if [ "$MERGEABLE" = "MERGEABLE" ]; then | |
| echo "is_mergeable=true" >> $GITHUB_OUTPUT | |
| echo "pr_number=$PR_NUMBER" >> $GITHUB_OUTPUT | |
| else | |
| echo "is_mergeable=false" >> $GITHUB_OUTPUT | |
| echo "pr_number=$PR_NUMBER" >> $GITHUB_OUTPUT | |
| exit 1 | |
| fi | |
| env: | |
| GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }} | |
| - name: Comment on PR | |
| if: steps.check-mergeable.outputs.is_mergeable == 'true' | |
| uses: actions/[email protected] | |
| with: | |
| github-token: ${{ secrets.GITHUB_TOKEN }} | |
| script: | | |
| const comments = "This PR is merged by the auto-merge-pr action defined at `.github/workflows/auto-merge-pr.yaml`" | |
| const owner = context.payload.repository.owner.login; | |
| const repo = context.payload.repository.name; | |
| const pr_number = "${{ steps.check-mergeable.outputs.pr_number }}" | |
| await github.rest.issues.createComment({ | |
| owner: owner, | |
| repo: repo, | |
| issue_number: pr_number, | |
| body: comments, | |
| }); | |
| - name: Merge oldest PR | |
| if: steps.check-mergeable.outputs.is_mergeable == 'true' | |
| run: | | |
| PR_NUMBER="${{ steps.check-mergeable.outputs.pr_number }}" | |
| echo "Merging oldest PR #$PR_NUMBER..." | |
| export GH_DEBUG=api | |
| if gh pr merge "$PR_NUMBER" --squash --delete-branch; then | |
| echo "Successfully merged PR #$PR_NUMBER" | |
| else | |
| echo "Failed to merge PR #$PR_NUMBER" | |
| exit 1 | |
| fi | |
| env: | |
| GITHUB_TOKEN: ${{ secrets.PE_BOT_PAT }} |